Functions Motion measureAdultt: Calories, steps, miles Sleep monitoring: 20:00 ~ 8:00Auto-expansion to12:00 Multi-sport mode: Running, cycling, jumping rope, fitness, hiking, yoga, golf, dance Heart Rate MeasureAdultt: Support Blood Pressure MeasureAdultt: Supports photovoltaic Oxygen measureAdultt: Support Precision Automatic health monitoring: Support Activity information data storage: Support OTA Upgraded: Support Hardware configurations Main control chip: FR8016HA Heart Rate sensor: Tianyi Hexin 3605 Temperature Sensor:Nanocore Micro NST112c Battery: 28mAh,3.7/4.2V lithium battery Optical PPG Analog Front EndPPG AFE) HX3605 APP:Google: JSRings, ISO: JSRing Bluetooth distance:3~5 Meters Feature: Product description: The smart ring is a fashionable wearable electronic product that can connect to a smartphone through near field communication to complete function execution and data sharing. It adopts advanced waterproof design and can be used without any power supply. Quickly start mobile phone applications and write the program startup that needs to be started quickly into the smart ring in advance. When the smart ring touches the phone, it will automatically find and start the program. Packing list: Smart ring *1 ;Charging compartAdultt base *1 ;Charging cable *1 ;Adultual*1